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([2620:10d:c092:600::1:d66f]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-606fe850afasm1809494a12.78.2025.06.05.03.02.10 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 05 Jun 2025 03:02:11 -0700 (PDT) Message-ID: <37376916-6fd0-4a29-ba40-dec512f9796a@gmail.com> Date: Thu, 5 Jun 2025 11:03:30 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [RFC v4 01/18] netmem: introduce struct netmem_desc mirroring struct page To: Byungchul Park , willy@infradead.org, netdev@vger.kernel.org Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, kernel_team@skhynix.com, kuba@kernel.org, almasrymina@google.com, ilias.apalodimas@linaro.org, harry.yoo@oracle.com, hawk@kernel.org, akpm@linux-foundation.org, davem@davemloft.net, john.fastabend@gmail.com, andrew+netdev@lunn.ch, toke@redhat.com, tariqt@nvidia.com, edumazet@google.com, pabeni@redhat.com, saeedm@nvidia.com, leon@kernel.org, ast@kernel.org, daniel@iogearbox.net, david@redhat.com, lorenzo.stoakes@oracle.com, Liam.Howlett@oracle.com, vbabka@suse.cz, rppt@kernel.org, surenb@google.com, mhocko@suse.com, horms@kernel.org, linux-rdma@vger.kernel.org, bpf@vger.kernel.org, vishal.moola@gmail.com References: <20250604025246.61616-1-byungchul@sk.com> <20250604025246.61616-2-byungchul@sk.com> Content-Language: en-US From: Pavel Begunkov In-Reply-To: <20250604025246.61616-2-byungchul@sk.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam10 X-Rspamd-Queue-Id: D29D520008 X-Stat-Signature: zgrr31xaxroutwstko8seajq6ardm5yj X-Rspam-User: X-HE-Tag: 1749117733-740309 X-HE-Meta: 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 mPG5ldED 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 6/4/25 03:52, Byungchul Park wrote: > To simplify struct page, the page pool members of struct page should be > moved to other, allowing these members to be removed from struct page. > > Introduce a network memory descriptor to store the members, struct > netmem_desc, and make it union'ed with the existing fields in struct > net_iov, allowing to organize the fields of struct net_iov. Pavel Begunkov -- Pavel Begunkov